N9TPB FCC License Search
🕒 FCC license data updated yesterday 7:15 am CDT (FCC files through Oct 4, 2026) · next update today 6:00 am CDT
Ask: HAMs within 5 miles of N9TPB · Extra class operators in Madison, WI · or try N9TPB · K9* wildcards · Smith, John · 0004797601 (FRN) · 53703 · Madison, WI

KR4ODU HAM

⏳ Not available yet — opens for vanity requests Aug 26, 2028, two years after the license was canceled (Aug 25, 2026).
2x3 call: any licensee can request it. No pending applications list it.

📬 QSL: no LoTW uploads on record · not eQSL AG · QRZ · HamQTH

Not currently held · 1 holder on record

Previous holder: Matthew R Olgren

Held KR4ODU Aug 5, 2026 → Aug 25, 2026 · first licensed Aug 5, 2026 as KR4ODU · 2 licenses · FRN 0038730925

Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for KR4ODU in the last 24 hours. They show up here within seconds of KR4ODU beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.